Poundworld has smashed the £100m barrier for sales in the past 12 months and plans to open its 100th store in 2010.

The retailer, which currently has an estate of 86 stores, is carrying out an aggressive expansion plan that will lift store numbers to 110 by Christmas and 250 by 2014.

Store numbers are already growing fast, with 17 having opened in the past year. Poundworld pledged to step up that rate.

It plans to expand further beyond its north west heartland, with locations including London, the southeast, Scotland and Northern Ireland. It will move to a 250,000 sq ft warehouse next year to accommodate the growth.

Sales hit £108m in the year ending March 2010 and are on course to hit £150m by next April.

Poundworld said it was ready to become a major national player, having opened buying offices in the Far East and joined buying group Nisa-Today's in the past year.

"Until now Poundworld has been building a strong and recognisable brand that our customers will become familiar with and loyal to," the group said in a statement. "Poundworld feels we are ready to seize the discount market."

The retailer claimed its 14,000 sq ft High Wycombe store was the UK's biggest pound shop.